Taxes & Take-Home Pay
Know your real marginal rate before you make a tax decision.
Most tax confusion traces to one misunderstanding: believing a raise into a higher bracket can reduce your take-home pay. It cannot. Only the dollars inside each bracket are taxed at that bracket's rate.
These tools compute your effective rate, your marginal rate, and the gap between them — which is the number that actually determines whether a deduction, a Roth conversion, or a pre-tax contribution is worth making.
Tools
Taxes calculators
Federal Income Tax Calculator
Bracket-by-bracket breakdown, your effective rate, and what the next dollar costs.
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Guides
Understand the decisions behind the taxes numbers.
- beginner9 min read
Understanding US Taxes
How US federal tax brackets work, the difference between marginal and effective rates, and the deductions and accounts that actually reduce your bill.
Updated January 15, 2026
Related goals
See how taxes fits into the bigger picture.
Lower Taxes
Know your marginal rate, then use the accounts built for it.
Increase Income
The raise matters. What survives taxes matters more.
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Taxes questions
What is the difference between marginal and effective tax rate?
Your marginal rate is what the next dollar you earn is taxed at. Your effective rate is total tax divided by total income, and it is always lower because earlier dollars were taxed in lower brackets. Use the marginal rate to evaluate decisions — an extra 401(k) contribution, a side income, a deduction — and the effective rate to understand your overall burden.
Does moving into a higher tax bracket reduce my take-home pay?
No. This is the most persistent myth in US personal finance. Brackets are marginal: if the 22% bracket starts at $48,475, then only income above that is taxed at 22%. Earning one more dollar can never leave you with less money after tax. Genuine cliffs exist in benefit phase-outs and subsidy thresholds, but not in the bracket structure itself.
Should I take the standard deduction or itemize?
Take whichever is larger. Since the standard deduction roughly doubled in 2018, around 90% of filers take it. Itemizing generally wins only with a large mortgage interest deduction, significant charitable giving, or high medical expenses — and the state and local tax deduction remains capped, which limits itemizing for many high-tax-state residents.
Why is my paycheck smaller than my salary divided by 26?
Between federal income tax withholding, Social Security at 6.2%, Medicare at 1.45%, state income tax, health insurance premiums and retirement contributions, deductions commonly total 25–35% of gross pay. Pre-tax deductions such as 401(k) and HSA contributions reduce your taxable income, so their true cost to your paycheck is less than the amount contributed.